Take west to be the positive direction.The height of a sloped roof above the place you are standing is 13 feet.If you move 5 feet to the west, the height is 7 feet.What is the slope of the roof line?
A) -1.20 feet
B) 1.20 feet
C) -0.63 feet
D) 1.61 feet

Question

Take west to be the positive direction.The height of a sloped roof above the place you are standing is 13 feet.If you move 5 feet to the west, the height is 7 feet.What is the slope of the roof line? ​
A) -1.20 feet
B) 1.20 feet
C) -0.63 feet
D) 1.61 feet

Quizplus · Accepted Answer

The slope of the roof line is calculated as the change in height divided by the change in horizontal distance. Moving west (positive direction) results in a decrease in height from 13 feet to 7 feet, a change of -6 feet over a distance of 5 feet. Thus, the slope is -6/5 = -1.20 feet.

Take West to Be the Positive Direction